On Mon 04 Jan 2016 at 20:03:33 +0100, Floris wrote:
> Op Mon, 04 Jan 2016 18:16:39 +0100 schreef Michael Biebl <biebl@debian.org>:
>
> >Am 04.01.2016 um 16:55 schrieb Floris:
> >>Dear list,
> >>
> >>Often there are multiple users working on my multiseat [1] system, some
> >>of them are kids and they are not paying attention if someone else is
> >>logged in. They can shutdown the computer even if someone else is logged
> >>in and have an active session.
> >
> >What command exactly do they use?
>
> the power off button in gnome3.18
>
> There is a warning that an other user is logged in, but all users are
> able to shutdown/ reboot.
Devise a file to put in /etc/polkit-1/localauthority/50-local.d after
you have read pklocalauthority(8). Works for me.